45166553 has 4 divisors (see below), whose sum is σ = 47543760. Its totient is φ = 42789348.

The previous prime is 45166531. The next prime is 45166619. The reversal of 45166553 is 35566154.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45166553 - 2⁶ = 45166489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45166523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188575 + ... + 1188612.

It is an arithmetic number, because the mean of its divisors is an integer number (11885940).

Almost surely, 2^45166553 is an apocalyptic number.

It is an amenable number.

45166553 is a deficient number, since it is larger than the sum of its proper divisors (2377207).

45166553 is a wasteful number, since it uses less digits than its factorization.

45166553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377206.

The product of its digits is 54000, while the sum is 35.

The square root of 45166553 is about 6720.6065946461. The cubic root of 45166553 is about 356.1276133205.

The spelling of 45166553 in words is "forty-five million, one hundred sixty-six thousand, five hundred fifty-three".